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New York AGRICULTURAL EXPERIMENT STATION. 85 
THE BATAVIA EXPERIMENT. 
This experiment was conducted by J. H. Miller, Batavia, N. Y. 
The experiment field contained eighteen acres of potatoes of the 
variety Champion planted the last week of May in hills 34 inches 
apart each way. | 
The sprayer used was a new Style “ Standard” purchased new 
in the spring of 1906. ‘The entire field was sprayed six times 
with bordeaux mixture on the following dates: July 11-12-13, 23-24, 
August 2-4, 14-15-16, 22-23-24 and September 1-3-4. The bordeaux 
was made with six pounds of copper sulphate to fifty gallons 
of water and sufficient lime added to satisfy the yellow-prussiate- 
of-potash test. The facilities for making the bordeaux were 
inconvenient. The prepared mixture was drawn to ‘the field 
in the sprayer a distance of about forty rods. The work was all 
done by one man, who mixed and applied the bordeaux at an 
average rate of fifty gallons per hour. In the first spraying six 
rows were covered at each passage, in the next three sprayings, 
five rows, and in the last two sprayings, four rows; the quantity 
of bordeaux applied varying from 50 gallons to about 65 gallons 
per acre at each application. 
Seven rows near the center of the field were left unsprayed. 
They were not even treated with poison. There were so few 
“bugs” that probably treatment for them was unnecessary, yet 
on the sprayed rows arsenite of soda was applied with the 
bordeaux in the second spraying. 
On the unsprayed rows in this experiment there was a little 
early blight, a few flea beetles and just a trace of late blight, but 
the injury from all these agencies combined was so slight that 
the average observer would have pronounced it immaterial. 
The items of expense for spraying eighteen acres of potatoes 
six times were as follows: 
Ee ODET Wetiphate (GQ) 76s. cc...) a ebiee cd acts sale hae ghee awe oe $50.40 
MEET TGING?) S206 COAL aoe ae ey FO) Ee Po OR 3.00 
mamuremeanor. fOr team 1S€. ROP A A ees, AL 17.85 
Mmonteaianar Lor inan'@ Ue. celia de. dense Gee hh DLA Lee Den 17.85 
MI PETA LCT) TOG: 5,5, Sveihd ro ica in ua Wer 2 ath ih gile wl A layg Bold bia bance A) 10 
EE AME AIS CL RACE EO oo a FV Bey aed Sidi ce hv -aihs segs <4 See Vi bin Upbnteigie oe eka 1.10 
MEDS SULAVGL oc. .9%0 ede, scene ca’ dts es BR TMY cd) Screen ate tor athe Meh eee 8.00 
eer e Pads ost Oo ty Oe RMSE AN, CALPE IG cree fi TR le $99.30 
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